JP3084268B2 - Drilling equipment for anchor fittings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to drilling by a punch of the press, in particular, the anchor is suitable for the manufacture of the anchor body to be used in Zhang stone dry method or the like
Perforation processing apparatus.

[0002]

2. Description of the Related Art Conventionally, anchors have been used in a dry stone method in order to fix a stone material for an outer wall to a concrete wall surface. A general anchor is composed of a main body having a cylindrical shape at the front end and a cylindrical shape at the rear end, and a cone-shaped core shaft housed in the cylindrical front end. A plurality of slits are formed in the distal end portion containing the shaft along the axial direction of the anchor. At the rear end of the anchor, a mounting through hole is formed in a direction perpendicular to the axial direction of the anchor.

[0003] An anchor of this type is inserted at a predetermined depth into a hole formed in a concrete wall surface during construction. When the rear end is hit with a hammer, the tip having the slit spreads along the conical surface in the concrete wall surface and is fixed to the concrete wall surface.

[0004] Next, the connecting metal extending from the back surface of the stone for the outer wall is hooked and fixed to the fixing through hole of the anchor metal, and the stone for the outer wall and the concrete wall surface are connected via the connecting metal. And can be fixed.

[0005] The above-mentioned dry-stone method has become the mainstream of the dry-stone method because of its ability to follow the displacement of a building due to an earthquake or the like and its good workability.

The material of the anchor is usually
It is made of stainless steel, and the cylindrical hole at the front end for accommodating the core shaft and the through-hole for mounting at the rear end are cut with a drill.

[0007]

However, it is not easy to machine the above-mentioned through-hole for mounting on a hard-to-cut material such as stainless steel even with the use of a carbide tool. In such a case, there is a problem that it is difficult to reduce the cost.

When a plurality of connecting fittings are to be mounted in the mounting through-hole, the diameter of the mounting through-hole must be increased. In this case, both sides of the through-hole at the rear end of the anchor fitting are required. There is a problem that the thickness is reduced and the strength is reduced.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems of the conventional anchor, and can easily process a mounting through hole necessary for the anchor.
It is another object of the present invention to provide a method and an apparatus for drilling a workpiece to which a plurality of connecting fittings can be attached without lowering the strength.

[0010]

The present invention according to claim 1 is characterized in that
Having an insertion passage through which a columnar anchor can be inserted
The entire outer peripheral surface of the anchor fitting inserted into the road
And restrains the diametral cross section of the anchor bracket from being deformed.
To insert the anchor into the insertion passage.
Shears and anchors restrained by their dies
Punch formed in the die in a direction crossing the axis of
A passage and a punch that can move along the punch insertion passage
And press the punch firmly against the outer surface of the anchor.
Form a through hole for fixing the connecting bracket to the anchor bracket
Hole of the anchor fitting comprising
It is a cutting machine.

According to a second aspect of the present invention, a cross section of the punch is provided.
Has a circular, oval, oval or polygonal shape
This is a drilling device for anchor fittings.

According to a third aspect of the present invention, there is provided a power transmission device which is inserted into an insertion passage.
Holding means for holding the anchor fitting in the processing position.
This is a device for drilling anchor metal fittings.

According to a fourth aspect of the present invention, the holding means is provided in the insertion passage.
Can be pressed against the outer peripheral surface of the anchor fitting inserted into the
Drilling equipment for anchor fittings composed of pins
It is.

[0014]

[0015]

[0016]

[0017]

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 shows the configuration of a main part of a processing apparatus 1 used when carrying out the work processing method of the present invention, and reference numeral A denotes a punching press section for performing a punching process. , Symbol B indicates an imposition press unit for performing imposition processing on the opening edge of the through hole after drilling.

First, the configuration of the punching press section A will be described. The perforating press section A is configured to perforate a through-hole by forcibly pressing a punch against a work, and is provided on two columns (not shown) standing upright from the lower plate 2. The plate 3 is supported so as to be able to move up and down.

An upper mold base 4, a punch receiving table 5, and a punch holder 6 are mounted on the lower surface of the upper plate 3 in this order, and a punch 7 is held by the punch holder 6 so as to be able to move up and down.

On the other hand, a lower mold base 8 is provided on the upper surface of the lower plate 2, and a punching die 9 that can be in close contact with the outer peripheral surface of the work is fixed on the lower mold base 8.
The punching die 9 has a work insertion passage 9a through which a columnar work 10 is inserted in a horizontal direction, and a punch passage 9b is formed in a vertical direction perpendicular to the work insertion passage 9a.

FIG. 2 shows a plan cross section of the punching die 9. In the figure, the work insertion passage 9a is located at a position behind the punch passage 9b in the work insertion passage 9a.
The brake passages 9c and 9d are formed in the left-right direction so as to be orthogonal to a. The brake passages 9c and 9d are directed toward the work insertion passage 9a by compression coil springs 11a and 11b. Pressing pins 12a and 12b as holding means to be pressed are stored.

The tips of the pressing pins 12a and 12b are in contact with the outer peripheral surface of the work loaded in the work insertion passage 9a, and regulate the movement of the work inserted into the work insertion passage 9a by a pusher described later. So that the processing position does not shift. Reference numeral 9e in the figure is a shaft hole through which a bolt for fixing the punching die 9 to the lower mold base 8 is inserted.

Further, below the portion where the punch passage 9b and the work insertion passage 9a intersect in the punch passage 9b, like the brake passages 9c and 9d, the punch passage 9b is perpendicular to the punch passage 9b. Passages 13a and 13b are formed facing each other in the left-right direction.
The return-prevention pins 14a and 14b for preventing the drilling waste from returning (upward) are housed in the holes 3a and 13b.

The tip protrusions of the return prevention pins 14a, 14b are arranged to slightly protrude into the punch passage 9b. Therefore, the punch dust generated by the perforation process is subjected to resistance by the tip projections, and is separated from the punch 7 rising after the perforation process.

Behind the punching die 9, the workpiece 1
A hydraulic cylinder 15 is disposed as a pusher for inserting the hole 0 into the work insertion passage 9a of the hole punching die 9. By extending the rod 15a from the hydraulic cylinder 15 and pushing the rear end face of the work 10 with its tip,
The work 10 is pushed into the work insertion passage 9a. Reference numeral 16 denotes a transport path for aligning the workpieces 10 one by one in the horizontal direction and transporting the workpieces 10 to the entrance of the workpiece insertion path 9b.

FIG. 3 shows the structure of the punch 7 described above. In FIG. 3A, a punch 7 has a shaft portion 7a having a circular cross section, an engaging portion 7b formed on the upper portion of the shaft portion 7a, and a punch blade 7c formed on a lower portion of the shaft portion.
It is composed of As shown in FIG. 3B, the punch blade 7c has an oval cross section.

The punch 7 is moved up and down by a crankshaft for converting the rotational movement of a motor (not shown) into a vertical movement and a rod connected to the crankshaft, and its stroke is determined by the machining position of the work insertion passage 9a. Is set to a length that can penetrate the work 10 positioned at the position. The motor, crankshaft, and rod can be considered as punch driving means.

Next, the imposition press section B will be described. In the imposition press portion B, the upper surface mounting die base 2 is provided on the lower surface of the upper plate 3 which is common to the perforated portion A.
0, upper side mounting die stand 21, upper side mounting pin holder 2
2. The upper side mounting die 23 is mounted in this order. Reference numeral 24 denotes an upper surface mounting pin, which is fixed so as to pass through the upper surface mounting pin holder 22 and the upper surface mounting die 23.

On the other hand, a lower mold base 25 is provided on the upper surface of the lower plate 2, and a pin holder 26 for attaching a lower surface and a die 27 for attaching a lower surface are fixed on the lower mold base 25. Reference numeral 28 denotes a lower surface mounting pin, which is fixed so as to penetrate the lower surface mounting pin holder 26 and the lower surface mounting die 27.

The lower end of the upper side mounting pin 24 and the upper end of the lower side mounting pin 28 are opposed to each other. The lower end of the upper side mounting pin 24 is slightly projected from the groove of the upper side mounting die 23, The upper end of the side surface mounting pin 28 also slightly protrudes from the groove 27a of the lower surface mounting die 27. FIG. 1 shows a state in which the upper surface mounting die 23 descends and is joined to the lower surface mounting die 27 at the joining line SL.

Next, the operation of the processing apparatus 1 having the above configuration will be described.

The work 10 conveyed by the conveyance path 16 is stopped at the entrance of the work insertion passage 9a of the punching die 9, and when the rod 15a of the hydraulic cylinder 15 is extended, the work 10 is moved into the work insertion passage 9a. The workpiece 10 reaches the processing position when the loaded and fed rod 15a has the maximum stroke. However, it is assumed that a plurality of works to be processed next are continuously loaded in the work insertion passage 9a, and the rod 15a pushes the rear end of the rearmost work 10. At this time, the tips of the pressing pins 12a and 12b are connected to the compression coil springs 11a and 11a, respectively.
The outer peripheral surface of the work 10 to be processed by the urging force of 1b is sandwiched from the left and right directions, and thereby the work 10 to be processed is held so as not to shift from the processing position.

In this state, when the upper plate 3 descends, the punch blade 7b enters the punch passage 9b and descends in the punch passage 9b. At this time, the center of the cross section of the work 10 held in the work insertion passage 9a is arranged on the extension of the center axis of the punch blade 7c. In this state, the punch blade 7b approaches the vicinity of the processing position of the work 10.

Next, when the motor is started, the punch blade 7c instantaneously descends via the crankshaft and the rod and strongly presses the outer peripheral surface of the work 10, whereby the punch blade 7c is pressed.
A through-hole corresponding to the cross-sectional shape of c, that is, a through-hole having an oval cross section is punched into the workpiece 10. At this time, since the work 10 is constrained so that its cross section in the diameter direction cannot be deformed, the tip of the punch blade 7c does not deviate from the center of the work, and therefore, the through-hole is punched out very accurately in the diameter direction of the work 10. .

After punching the through hole, the punch 7 rises and returns to the standby position. Further, since the boring chips generated by the punching are locked by the return preventing pins 14a and 14b, they do not rise in the punch passage 9b with the rise of the punch blade c, and as a result, the punch blade 7c
Peeled off from

Next, when the rod 15a of the hydraulic cylinder 15 further loads the next work 10 into the work insertion passage 9a, the processed work 10 is pushed out from the work insertion passage 9a, and the leading end of the work 10 is punched out by the punching die 9a. Protruding from the front.

The work 10 having the protruding tip is gripped by an arm (not shown) and pulled out in the horizontal direction. The pulled-out workpiece 10 is then conveyed to the imposition press section B, and the concave groove 27a is formed in a state where the tip 28a of the imposition pin 28 has entered the lower opening of the through-hole of the workpiece 10.
Placed on However, at this time, the upper surface mounting die 2
It is assumed that 3 is retracted upward.

Next, when the upper surface attaching die 23 descends, the tip 24a of the imposition pin 24 enters the upper opening of the work 10, and the upper surface attaching die 23 and the lower surface attaching die 27 are joined at the joining line SL. When joined, the imposition portion 24b
And 28b, the upper and lower opening edges of the through hole of the workpiece 10 are imposed.

As described above, the through-hole is first punched out from the end of the work 10 by press working, and subsequently, the opening edge of the punched-out through-hole is imposed.

FIG. 4 shows an anchor fitting manufactured by using a work in which a through hole is formed by the above-described processing method. An anchor fitting 30 shown in the figure is a main body driving type usually called a stoning anchor,
A through hole 30b having an oval cross section is formed in one end of the main body 30a by the method of the present invention.
In addition, an imposition 30c is formed on the opening edge of the through hole 30b by the imposition press device B. The main body 30a
Has a cone-shaped core shaft 3 as in the conventional configuration.
0 is attached.

FIG. 5 shows a construction state using the anchor fitting. The anchor fitting 30 shown in FIG.
When a predetermined depth is inserted into the hole formed by drilling in the concrete wall surface 31 and the rear end portion is driven in with a hammer, the tip portion 30e having a slit spreads in the concrete wall surface 31 along the taper of the core shaft 30d. Thereby, the anchor 30 is fixed to the concrete wall surface. Next, since the mounting through-hole 30b is formed in an oval shape and wide with respect to the fixed anchor metal fitting 30, the connecting metal fittings 34, 33 extending from the back surfaces of the outer wall stones 32, 33 are provided.
A plurality of 35 can be hooked and fixed.

The processing apparatus according to the present invention is not limited to the above-mentioned stone-pulling anchor for fixing the stone material for the outer wall, but may be any apparatus or structural member such as a signboard, a cooler outdoor unit, piping, a ramp, a guardrail, etc. Alternatively, the present invention can be applied to the manufacture of a fixture for fixing to a concrete wall or the like.

In the above embodiment, the punch to be mounted on the processing apparatus of the present invention uses a punch whose cross section is formed in an oval shape. However, the present invention is not limited to this, and a punch having a circular or elliptical cross section is used. Alternatively, a cross section having a polygonal shape including a triangle, a square, a rectangle, and the like can be used.

Further, the die used in the processing apparatus of the present invention is not limited to the one having the through-hole as shown in the above embodiment, and the cross section in the diameter direction of the work is substantially restrained so as not to be deformable. If possible, a combination type die that can be divided into an upper die and a lower die may be used.

Further, as shown in the above embodiment, it is preferable that the punch passage is perpendicular to the work insertion passage 9a in the vertical direction. However, the present invention is not limited to this, and the punch passage is slightly inclined with respect to the work insertion passage 9a. Drilling a through hole in a direction intersecting with the above is also included in the method for drilling a workpiece according to the present invention.

Further, as shown in the above embodiment, the holding means of the present invention is not limited to the pressing pins 14a and 14b for pressing the work from both sides by the biasing force of the spring, and the work is kept at the processing position. Any holding mechanism that can be used can be used.

[0049]

As is apparent from the above description,
ADVANTAGE OF THE INVENTION According to the drilling apparatus of this invention , a through-hole can be drilled with respect to a workpiece | work in the direction which intersects with the axial center, without requiring the process of several steps. Further, according to the present invention in which a punch having an oval cross section is used to form a hole, a through hole into which a plurality of connection fittings and the like can be attached can be formed without lowering the strength of the member. Further, according to the processing apparatus of the present invention, it is possible to easily process the through-hole for fixing the connecting fitting in the anchor fitting.

According to the processing apparatus of the present invention, the punch strongly presses the outer peripheral surface of the work in a state in which the cross section in the diameter direction of the work is immovably restrained by the die. In this case, a through hole can be formed.

According to the processing apparatus of the present invention provided with the holding means, there is an advantage that a through hole can be accurately formed at a predetermined processing position.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a processing apparatus having a partial cross section, which is used when performing a method for drilling a workpiece according to the present invention.

FIG. 2 is a plan sectional view showing a configuration of a punching die shown in FIG.

FIG. 3 is an enlarged view showing a configuration of the punch shown in FIG.

FIG. 4 is a configuration diagram of an anchor manufactured by the processing apparatus of the present invention.

FIG. 5 is an explanatory diagram showing a construction state using an anchor according to the present invention.

[Explanation of symbols]

 Reference Signs List A punching press section B imposition press section 1 processing apparatus 2 lower plate 3 upper plate 4 upper mold base 5 punch receiving stand 6 punch holder 7 punch 8 lower mold base 9 punching die 9a work insertion passage 9b for punch Passageway 10 Work 12a, 12b Pressing pin 14a, 14b Reverse return prevention pin 15 Hydraulic cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (72) Masakazu Kotani, Inventor No. 7, 980 Kanaoka-cho, Sakai-shi, Osaka (56) References JP 4-62813 (JP, B2) (58) Fields surveyed (Int .Cl. ⁷ , DB name) B21D 28/32 B21D 28/34 B21D 28/00 B21D 43/00

Claims (4)

(57) [Claims] 1. An insertion through which a cylindrical anchor can be inserted.
Outer peripheral surface of an anchor having a path and inserted into the insertion path
Close contact with the whole, the diameter direction of the anchor bracket
A die for restricting the cross-section so that it cannot be deformed, and a front
Pusher for inserting the anchor bracket and the die
The direction that intersects with the axis of the anchor fixture
A punch insertion passage formed in the die in the direction
Punch that can move along the
The anchor metal is strongly pressed toward the outer peripheral surface of the anchor metal.
Punch drive that forms a through hole for fixing the connecting bracket to the tool
Moving means, and an anchor fitting characterized by comprising:
Drilling equipment. 2. A punch having a circular cross section, an elliptical cross section, and a small cross section.
2. The antenna according to claim 1, wherein the antenna is formed in a shape of a polygon or a polygon.
Drilling equipment for car fittings. 3. The anchor inserted into the insertion passage.
A contractor provided with holding means for holding the metal fittings in the processing position
3. An apparatus according to claim 1 or 2, wherein the anchor metal fitting is drilled.
Place. 4. The holding means is inserted into the insertion passage.
A pin that can be pressed against the outer peripheral surface of the anchor
4. A hole in the anchor fitting according to claim 3, wherein the hole is formed.
Processing equipment.